French ironclad Tonnant

Tonnant as illustrated in Les Merveilles de la Science, 1891
History
France
NameTonnant
BuilderRochefort Arsenal, Rochefort
Laid down12 February 1875
Launched16 October 1880
Commissioned3 August 1885
Decommissioned1 September 1902
Stricken24 October 1902
FateSold to be broken up, 2 April 1905
Class overview
Preceded byTempête class
Succeeded byFurieux
General characteristics
Class & typeTonnant class coastal defense ship
Displacement5,091.3 t (5,010.9 long tons)
Length78.6 m (257 ft 10 in) (o/a)
Beam17.72 m (58 ft 2 in)
Draft5.636 m (18.49 ft)
Installed power
Propulsion1 shaft, 1 compound steam engine
Speed10 kn (19 km/h; 12 mph)
Complement163
Armament
Armor

Tonnant was a coastal defense ship built for the French Navy (Marine Nationale) that served during the last two decades of the nineteenth century. Initially envisaged to mount two 340 mm (13.4 in) guns in a single turret, the design was redone with the guns mounted in two barbette turrets. The vessel pioneered the naval use of the electricity, the power source being used to drive the turrets. Launched in 1880, Tonnant was initially commissioned in reserve and was only intermittently placed into active service. The vessel did not participate in any conflicts. However, in 1889, Tonnant formed part of the force that successfully defended Cherbourg in a naval exercise against the more powerful ironclads of the Channel Squadron (Escadre du Canal). The main armament was removed to be upgraded in 1901 but was not replaced. Instead, the ship was decommissioned in 1902 and was sold in 1905 to be broken up.